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Grenadines, Saint Vincent and the Grenadines · Tropical

Grenadines in September: go or not?

Mixed period. Grenadines in September: 5.3/10.

📅 Updated August 2026 🛰️ ERA5 · 10 years 📍 13.01°N · 61.23°W
⚡ This month's verdict
Why not
Grenadines · September
5.3
26–28°
Temperature
51%
Rain
7h
Sun
🌴 Tropical☀️ High UV🌧️ Monsoon season
Photo : Hugh Whyte via Unsplash
The month in detail

What to expect in September

September falls in the wet season in Grenadines. Showers are often brief but intense. With 51.0% of rainy days, always have indoor alternatives planned.

September ranks 8 out of 12 months in Grenadines.

This month's conditions

What it's like in September

UV index
8 · very high
protection essential
Feels like
very humid
23°
Sea
31°C
warm, ideal
Daylight
12.1h of daylight
Air quality
excellent
AQI 19
Compare

Is September the right month?

The best month in Grenadines is April (8.7/10), 3.4 pts higher than September.

See April →See all 12 months →
Context

Our verdict

Grenadines (Saint Vincent and the Grenadines), Caribbean micro-state in the south of the Lesser Antilles : 110,000 inhabitants on 32 islands of which 9 inhabited. The country is made up of the main island Saint Vincent + 32 small Grenadines islets (Bequia, Mustique, Canouan, Mayreau, Union Island, Tobago Cays, Palm Island, Petit Saint Vincent).

Read Gilles' full review →

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Plan your trip

Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.

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Hotels & rentals · Grenadines
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Tours, tickets, experiences
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Flights
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🎟️ Activities & tours · Grenadines

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Practical info

What you need to know before you go

Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a tropical stay.

Country · Saint Vincent and the Grenadines

🗣️LanguageEnglish
💶CurrencyEast Caribbean Dollar ($)
🚗DrivingLeft-hand
🛡️Safety ⓘVery safe · 1/5
💰Cost of living ⓘModerate · 3/5

🌡️ Climate

🌍Climate typeTropical
📈Climate trend ⓘ+0.92°C/decade
🔥Hottest monthAugust · 28°C
❄️Coolest monthJanuary · 26°C
🌧️Rainiest month ⓘOctober · 59%

🏝️ Tropical stay

🌞Dry season ⓘMay → Sep
🌧️Wet season ⓘDec → Mar
🌀Cyclones ⓘSeason Nov-Apr
Explore

Other destinations in September

If September doesn't convince you for this destination, compare with others.

Similar climate
Saint ThomasUS Virgin IslandsTrinidad and TobagoTrinidad and TobagoCancúnMexicoSaint BarthélemySaint BarthélemySaint MartinSaint Martin
Nearby
Saint VincentSaint Vincent and the Grenadines16 kmSaint LuciaSaint Lucia104 kmSt. George'sGrenada121 kmMartiniqueMartinique183 km
Other top picks
Cape VerdeCape Verde5.3SalCape Verde5.6Marsa AlamEgypt5.8Sharm el-SheikhEgypt5.8HurghadaEgypt5.9
← AugustOctober →
🗺️ See all 754 destinations on the map
Location

Where is Grenadines ?

Global position + regional geographic context.

🌍 World
🔍 Geographic context
Saint Vincent and the Grenadines
Tropical climate with a 8.7 → 5.1 gap between best and worst month. 10 years of ERA5 data to choose by project.
13.01°N · 61.23°W
Questions

Frequently asked questions

What is the best time to visit Grenadines?
April is the best month with 26.0°C highs, 25.0°C lows, 8.7h of sunshine and 18.0% rainy days. The months of April & March offer comparable conditions.
How many hours of sunshine does Grenadines get in April?
Grenadines averages 8.7 sunshine hours per day in April. It is the sunniest month with a climate score of 8.2/10.
What is the rainiest month in Grenadines?
July is the most unfavourable month with July has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Grenadines in April?
In April, overnight lows reach 25.0°C, while afternoon highs average 26.0°C.
Is Grenadines good in winter?
In winter (December-February), Grenadines scores 7.7/10 on average — Decent period conditions for cultural visits.. The best month overall remains April with a score of 8.2/10.
When should you avoid Grenadines?
July is the most difficult month to visit Grenadines, with July has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.
Can you swim in Grenadines in September?
In September, the sea averages 31°C in Grenadines: warm, ideal. Ideal conditions for swimming and snorkeling.
Do you need sun protection in Grenadines in September?
The average UV index reaches 8 in September in Grenadines (very high), with about 12.1h of daylight. Protection essential.